A damaged boat navigation-light base can be identified from its remaining socket. Check whether it has two or three contacts, whether the housing is round or rectangular, and whether the original fitting mounted on a deck or vertical windshield frame. These distinctions help avoid ordering an incompatible pole or base.
Count contacts in the original pole base
2-pin pole socket
Keyed and angled or vertical styles are available. A matching pin count alone does not establish base/pole compatibility.
3-pin bi-colour socket
Selected LightArmor bases support NV6LC2/5095 bi-colour pole-light families. Round and rectangular housings differ.
Conceptual pin-count illustrations only, not actual pin placement, electrical polarity or wiring instructions.
Locking collars matter. Attwood's 5340-54-7 folding two-pin pole specifies 910R2/910V2/910T2 bases. The manufacturer identifies some legacy bases such as 911339 as usable only with its locking collar removed. Do not assume a 3-pin base will work.
Identify the correct navigation-light component
- Photograph the original base with its protective cover open and electrical power disconnected.
- Count pins and check the key, pole collar and insertion angle.
- Measure the mounting footprint and note whether the fitting is fixed on a deck or vertical support.
- Compare the exact base and pole numbers; the 5340 folding pole is not a 3-pin LightArmor unit.
- Do not treat a portable clamp-on lighting set as a verified replacement for a vessel's fixed navigation-light installation.
Compare Attwood light and socket part numbers
| MPN | Connection | Part type | Manufacturer-listed characteristics |
|---|---|---|---|
| 910R3PB-1 | 3-pin | Round socket base | Round black composite base for specified NV6LC2 and 5095 bi-colour pole-light families |
| 910V3PB-7 | 3-pin | Rectangular socket base | Rectangular black composite socket for specified NV6LC2 and 5095 bi-colour pole-light families |
| 911339-1 | 2-pin | Silver angled deck base | Chrome-finished four-inch ZAMAK deck base, keyed 12-degree socket with swivel cover |
| 911339-7 | 2-pin | Silver angled deck base | Aftermarket-pack 911339 two-pin deck base with swivel cover and 12-degree socket |
| 911490-1 | 2-pin | Black vertical base | Four-and-one-quarter-inch base for compatible pole lights on a windshield frame; hinged cover and V adapter |
| 5340-54-7 | 2-pin pole | Folding all-round light | 54-inch folding incandescent all-round pole with locking collar; check compatible 910R2/V2/T2 bases |
| NV1012SS-1 | Fixed lights | Red/green sidelight pair | Two individual stainless deck-mounted oval red and green LED sidelights, not a removable pole |
| 14191-7 | Portable kit | Battery-powered navigation set | Portable camouflage bow/stern LED kit with C-clamps; not intended to meet USCG navigation-light regulations |
These are model-specific characteristics. They do not imply that all 2-pin or 3-pin parts interchange.
Compare exact part photographs and listings
Compare the model number and image, then check condition and availability on the individual UsedRVParts listing.
Three-pin LightArmor bases

Attwood 910R3PB-1 — Round socket baseRound black composite base for specified NV6LC2 and 5095 bi-colour pole-light familiesCheck item details and availability

Attwood 910V3PB-7 — Rectangular socket baseRectangular black composite socket for specified NV6LC2 and 5095 bi-colour pole-light familiesCheck item details and availability
Two-pin deck and vertical bases

Attwood 911339-1 — Silver angled deck baseChrome-finished four-inch ZAMAK deck base, keyed 12-degree socket with swivel coverCheck item details and availability

Attwood 911339-7 — Silver angled deck baseAftermarket-pack 911339 two-pin deck base with swivel cover and 12-degree socketCheck item details and availability

Attwood 911490-1 — Black vertical baseFour-and-one-quarter-inch base for compatible pole lights on a windshield frame; hinged cover and V adapterCheck item details and availability
Two-pin folding pole light

Attwood 5340-54-7 — Folding all-round light54-inch folding incandescent all-round pole with locking collar; check compatible 910R2/V2/T2 basesCheck item details and availability
Permanent red and green sidelights

Attwood NV1012SS-1 — Red/green sidelight pairTwo individual stainless deck-mounted oval red and green LED sidelights, not a removable poleCheck item details and availability
Portable clamp-on navigation kit

Attwood 14191-7 — Battery-powered navigation setPortable camouflage bow/stern LED kit with C-clamps; not intended to meet USCG navigation-light regulationsCheck item details and availability
UsedRVParts product viewing and pickup in Kelowna are by appointment.
